<LCPO> BIOLOGY
<LCPO> BIOLOGY
12th Edition
ISBN: 9781266216398
Author: Raven
Publisher: MCG CUSTOM
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Chapter 35, Problem 1DA
Summary Introduction

To explain: The number of times must each meristem cell divide to produce the 100 cells in the given observation.

Introduction: The plants are mainly multicellular, predominantly photosynthetic eukaryotes of the kingdom Plantae. The meristem is a tissue in the plants that consists of undifferentiated cells, which is capable of cell division.

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The meristem is classified by their location in the plant as lateral (in vascular and cork cambia), apical (located at shoot and root tips), and intercalary (at internodes). The root apical meristem is also called root apex. The root apical meristem is a small region at the tip of root in which all cells have the ability of repeated division and from which all the primary root tissues are derived.

Each time a meristem cell divides, one daughter cell contributes to a new tissue and others continue as meristem cell. Therefore, each meristem cell would have to divide 10 times for every 100 root cap cells that need to be replaced. 

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After you feel comfortable with your counting method and identifying cells in the various stages of mitosis, use the four images below of whitefish blastula to count the cells in each stage until you reach 100 total cells, recording your data below in Data Table 1. (You may not need to use all four images. Stop counting when you reach 100 total cells.) After totaling the cells in each stage, calculate the percent of cells in each stage. (Divide total of stage by overall total of 100 and then multiply by 100 to obtain percentage.)   Data Table 1Stage    Totals    PercentInterphase        Mitosis:        Prophase        Metaphase        Anaphase        Telophase        Cytokinesis        Totals    100    100% To find the length of time whitefish blastula cells spend in each stage, multiply the percent (recorded as a decimal, in other words take the percent number and divide by 100) by 24 hours. (Example: If percent is 20%, then Time in Hours = .2 * 24 = 4.8) Record your data in Data…
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